Module: Sequel::EvalInspect

Included in:
Sequel
Defined in:
lib/sequel/extensions/eval_inspect.rb

Instance Method Summary collapse

Instance Method Details

#eval_inspect(obj) ⇒ Object

Special case objects where inspect does not generally produce input suitable for eval. Used by Sequel::SQL::Expression#inspect so that it can produce a string suitable for eval even if components of the expression have inspect methods that do not produce strings suitable for eval.



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# File 'lib/sequel/extensions/eval_inspect.rb', line 27

def eval_inspect(obj)
  case obj
  when BigDecimal
    "Kernel::BigDecimal(#{obj.to_s.inspect})"
  when Sequel::SQL::Blob, Sequel::LiteralString
    "#{obj.class}.new(#{obj.to_s.inspect})"
  when Sequel::SQL::ValueList
    "#{obj.class}.new(#{obj.to_a.inspect})"
  when Array
    "[#{obj.map{|o| eval_inspect(o)}.join(', ')}]"
  when Hash
    "{#{obj.map{|k, v| "#{eval_inspect(k)} => #{eval_inspect(v)}"}.join(', ')}}"
  when Time
    datepart = "%Y-%m-%dT" unless obj.is_a?(Sequel::SQLTime)
    "#{obj.class}.parse(#{obj.strftime("#{datepart}%T.%N%z").inspect})#{'.utc' if obj.utc?}"
  when DateTime
    # Ignore date of calendar reform
    "DateTime.parse(#{obj.strftime('%FT%T.%N%z').inspect})"
  when Date
    # Ignore offset and date of calendar reform
    "Date.new(#{obj.year}, #{obj.month}, #{obj.day})"
  else
    obj.inspect
  end
end